Haha! yes, I think this is quite right, the people who argue that persons are fictions but the fictions are reborn again and again forever causing themselves immeasurable suffering until they achieve the permanent annihilation of a thing that never existed anyway add an awful lot of metaphysical baggage to arrive at a position that the Atheist gets for free so to speak.
But @travlingwonderer I would counsel you not to despair, there is much more to Buddhism than the not-self doctrine, the point of which is to help you be less selfish and more happy anyway, not to solve metaphysical riddles, Christianity, Atheism, Islam, Buddhism, Hinduism, all these faiths have their riches of spiritual profundity, otherwise we would have to consider millions upon millions of people to be deluded fools based on their cultures which is not very charitable, and of course all these faiths have their foibles and problems, otherwise we would have to consider some one opinion amongst the many as perfect and infallible and that would seem to be pretty simplistic and naive.
My advise to you would be to meditate! thinking to hard about these things isn’t good for you, you only need to look at the history of philosophy to realize that smarter people than you or me have had disagreements about these subjects for thousands of years, so it’s not really very likely that a stranger on the internet will be able to resolve all your doubts.
Anyway,
Good luck with your journey.
Metta